The Michelangelo Two-Bike Gravity Storage Rack impressively relies on physics to store a pair of bicycles rather than the typical hardware used to secure objects to walls. Although some may look on incredulously and nervously as two bikes are stored on this ingenuous rack that simply leans against a wall without any nails or screws holding it in, many others will nod approvingly at the lack of marks it will leave behind. More than that, it is easily movable.